Matthew 24:12

and as iniquity becomes more flagrant, the zeal of many will grow cool.

James 4:1-4

you breathe slaughter and revenge for what you cannot obtain.

James 5:1-6

As for you that are rich: weep, and lament the miserys that are falling upon you.

Revelation 2:4-5

nevertheless, I have somewhat against thee, because thou hast left thy first love.

Revelation 2:10

fear none of those things which thou shalt suffer: behold, the devil shall cast some of you into prison, that ye may be tried; and ye shall have tribulation ten days: be thou faithful unto death, and I will give thee a crown of life.

Revelation 3:15

I know thy works, that thou art neither cold nor hot: I would thou wert cold or hot.

Treasury of Scripture Knowledge

Summary

And because iniquity shall abound, the love of many shall wax cold.

Bible References

The love

Revelation 2:4
nevertheless, I have somewhat against thee, because thou hast left thy first love.
Revelation 3:15
I know thy works, that thou art neither cold nor hot: I would thou wert cold or hot.